CN111536850A - Sample plate for rapidly detecting surface defects of parts - Google Patents
Sample plate for rapidly detecting surface defects of parts Download PDFInfo
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- CN111536850A CN111536850A CN202010414086.8A CN202010414086A CN111536850A CN 111536850 A CN111536850 A CN 111536850A CN 202010414086 A CN202010414086 A CN 202010414086A CN 111536850 A CN111536850 A CN 111536850A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/08—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters
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- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The invention discloses a template for rapidly detecting surface defects of parts, which comprises circular, square and rectangular defect detection areas, wherein the dimensional tolerance of the template is 1/10-1/4 of a tolerance band required by the defect detection of the parts. The invention solves the problems of complex measuring process, inaccurate measuring result and low measuring efficiency of the existing precise optical measuring equipment in the traditional detection tool for the surface defects. Whether the surface defects meet the technical requirements of products or not can be judged quickly, and the detection efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of aviation product rapid inspection templates, and particularly relates to a template for rapidly detecting surface defects of parts.
Background
In the production and manufacturing process of an airplane, the assembly and treatment of a large number of parts, the re-assembly of assembly parts, the installation and integration of standard finished products and the like are involved, and the parts have the characteristics of more turnover times, more installation and assembly processes, more testing and detection processes and the like, so that a large number of surface defects such as scratches, bruises, dents and the like are generated on the surfaces of the parts in the manufacturing and assembling process. Such defects, for example, can be detected and addressed in a short time, subsequently degrading aircraft performance, and affecting aircraft service and life.
The traditional surface defect size detection is mainly realized by tools such as a tape measure and a vernier caliper, but the traditional detection instrument has the problems of complex measurement process, low measurement efficiency, inaccurate measurement result and the like due to irregular shape and non-uniform size of actually generated surface defects.
At present, although precise optical measurement equipment can realize precise measurement of surface defects, the equipment has higher requirements on measurement environment and measurement personnel, and has limited measurement range and low measurement efficiency. These problems make the detection of surface defects of an aircraft seriously affect the development and production schedule and cycle of the aircraft. No effective solution to these problems has emerged.
Disclosure of Invention
The invention aims to provide a sample plate for quickly detecting surface defects of parts, and aims to solve the problems of complex measuring process, inaccurate measuring result and low measuring efficiency of the conventional precision optical measuring equipment for the surface defects of the traditional detecting tool.
The invention is mainly realized by the following technical scheme: a template for rapidly detecting surface defects of parts comprises a circular, square and rectangular defect detection area, and the dimensional tolerance of the template is 1/10-1/4 of a tolerance band required for detecting the defects of the parts.
In order to better implement the invention, further, a plurality of circular, square and rectangular defect detection areas with gradually changed sizes are sequentially and respectively arranged on the sample plate, and the circular, square and rectangular defect detection areas respectively comprise a circle, a square and a rectangle which have the largest and smallest requirements on the surface defect to be detected.
The sample plate is provided with a plurality of circular, square and rectangular defect detection areas, and the defect detection areas comprise circles, squares and rectangles with the maximum and minimum sizes identical to those of the surface defects to be detected. Namely, a plurality of circular defect detection areas with different sizes are arranged on the sample plate, and the sizes are sequentially arranged from small to large, wherein the circular defect detection areas comprise circles with the maximum and minimum sizes identical to those of the surface defect to be detected. The sample plate is provided with a plurality of square defect detection areas with different sizes, and the sizes of the square defect detection areas are sequentially arranged from small to large, wherein the square defect detection areas comprise squares with the maximum and minimum sizes identical to those of the surface defect to be detected. The sample plate is provided with a plurality of rectangular defect detection areas with different sizes, and the sizes are sequentially arranged from small to large, wherein the rectangular defect detection areas comprise rectangles with the largest and smallest requirements on the surface defects to be detected.
In order to better implement the invention, further, the diameter of the circular hole of the circular defect detection area comprises a minimum aperture Φ min and a maximum aperture Φ max which are the same as the maximum and minimum apertures required by the surface defect to be detected;
for easy detection, and at the same time, accurately estimating the surface defect size range at phiminAnd phimaxK round holes are arranged between the two and the diameters of the round holes are phi1，Φ2，Φ3，…，Φk(ii) a And the following conditions are satisfied:
Φ1=Φmin+(Φmax-Φmin)/(k+1)，
Φ2=Φmin+(Φmax-Φmin)/(k+1)*2，
…
Φk=Φmin+(Φmax-Φmin)/(k+1)*k。
to better implement the present invention, further, the positive of the square defect detection areaThe square dimensions include the minimum edge length equal to the maximum and minimum dimensions required for the surface defect to be detectedl minLongest side lengthl max；
For convenient detection and accurate estimation of the range of surface defect sizesl minAndl maxk squares are arranged between the two detection edge lengths of the squares arel 1，l 2，l 3，…，l k(ii) a And the following conditions are satisfied:
l 1=l min+(l max-l min)/(k+1)，
l 2=l min+(l max-l min)/(k+1)*2，
…
l k=l min+(l max-l min)/(k+1)*k。
in order to better implement the invention, further, the size of the rectangle of the rectangular defect detection area is the same as the length and width dimensions required by the surface defect to be detected; and scales are marked in two directions of the length and the width of the rectangle by taking millimeters as a unit so as to accurately record the length and the width of the defect.
In order to better implement the invention, the sample plate is made of transparent acrylic plates and has a thickness of 1-3 mm.
In order to better implement the invention, the periphery of the sample plate is chamfered, and the size of the chamfer is 3mm-5 mm.
In order to better realize the invention, a hanging hole with the aperture of 3mm is further formed at the position 5mm away from the edge of the sample plate and is used for hanging the thin wire when the sample plate is stored.
The invention has the beneficial effects that:
(1) the invention solves the problems of complex measuring process, inaccurate measuring result and low measuring efficiency of the existing precise optical measuring equipment in the traditional detection tool for the surface defects. Whether the surface defects meet the technical requirements of products or not can be judged quickly, and the detection efficiency is improved.
(2) Circular and square defect detection areas with different diameters and side lengths are arranged on the sample plate, so that the size range of the surface defects can be rapidly known, and support is provided for qualitative and quantitative description of the defects.
(3) The rectangular defect detection area on the sample plate can not only quickly judge whether the defect size is qualified, but also measure the specific size of the defect through scales.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a sample plate according to example 3;
fig. 3 is a front view of fig. 2.
Detailed Description
Example 1:
a template for rapidly detecting the surface defects of parts, as shown in figure 1, comprises a circular, square and rectangular defect detection area, and the dimensional tolerance of the template is 1/10-1/4 of a tolerance band required by the defect detection of the parts. The sample plate is sequentially and respectively provided with a plurality of circular, square and rectangular defect detection areas with gradually changed sizes, and the circular, square and rectangular defect detection areas respectively comprise a circle, a square and a rectangle which have the largest and the smallest requirements on surface defects to be detected.
The invention solves the problems of complex measuring process, inaccurate measuring result and low measuring efficiency of the existing precise optical measuring equipment in the traditional detection tool for the surface defects. Whether the surface defects meet the technical requirements of products or not can be judged quickly, and the detection efficiency is improved.
Example 2:
in this embodiment, optimization is performed on the basis of embodiment 1, and the circular defect detection area should be designed to satisfy the following conditions:
the diameter of the S1 round hole is the same as the maximum and minimum aperture required by the surface defect to be detected, wherein the minimum aperture is phiminMaximum aperture diameter of phimax。
S2 determining the required detection value at phiminAnd phimaxThe detection holes phi with other diameters are arranged1，Φ2，Φ3…。
S3, if there are only two holes with the maximum and minimum apertures, for the convenience of detection, and the range of the surface defect size is accurately estimated, k small holes are inserted between the two holes, and the apertures are:
Φ1=Φmin+(Φmax-Φmin)/(k+1)，
Φ2=Φmin+(Φmax-Φmin)/(k+1)*2，
…
Φk=Φmin+(Φmax-Φmin)/(k+1)*k
the design of the square defect detection area meets the following conditions:
the size of the T1 square is the same as the maximum and minimum sizes required for the surface defects to be detected, wherein the minimum side length of the square isl minThe longest side length of the square isl max。
T2 on the basis of detection requirementsl minAndl maxset the detection side length of the rest side lengthl 1，l 2，l 3…。
If only two squares with the maximum side length and the minimum side length exist in T3, for the convenience of detection and the accurate estimation of the surface defect size range, k squares are inserted between the side lengths, and the side lengths are respectively as follows:
l 1=l min+(l max-l min)/(k+1)，
l 2=l min+(l max-l min)/(k+1)*2，
…
l k=l min+(l max-l min)/(k+1)*k
the design of the rectangular defect detection area meets the following conditions:
the P1 rectangle has dimensions equal to the desired length and width dimensions of the surface defect to be detected, e.g. C1(a 1×b 1)，C2(a 2×b 2) And the like.
The P2 is marked with scales in the length and width directions of the rectangle by millimeter so as to accurately record the length and width dimensions of the defect.
The invention solves the problems of complex measuring process, inaccurate measuring result and low measuring efficiency of the existing precise optical measuring equipment in the traditional detection tool for the surface defects. Whether the surface defects meet the technical requirements of products or not can be judged quickly, and the detection efficiency is improved. Circular and square defect detection areas with different diameters and side lengths are arranged on the sample plate, so that the size range of the surface defects can be rapidly known, and support is provided for qualitative and quantitative description of the defects. The rectangular defect detection area on the sample plate can not only quickly judge whether the defect size is qualified, but also measure the specific size of the defect through scales.
The rest of this embodiment is the same as embodiment 1, and thus, the description thereof is omitted.
Example 3:
a template for rapidly detecting surface defects of parts mainly comprises 3 defect detection areas in shapes of circles, squares and rectangles as shown in figures 1-3.
As shown in fig. 2, the diameter of the circular hole in the circular defect detection area is the same as the maximum and minimum required diameters of the surface defect to be detected, wherein the minimum diameter is 0.5mm, and the maximum diameter is 4 mm.
This spare part only has two holes in biggest and minimum aperture to circular detection area requirement, and for detecting conveniently, accurate estimation surface defect size range simultaneously, then insert 6 apertures between two holes, its aperture is respectively:
Φ1=Φmin+(Φmax-Φmin)/(k+1)=0.5+（4-0.5）/7=1，
Φ2=Φmin+(Φmax-Φmin)/(k+1)*2=0.5+（4-0.5）/7*2=1.5，
Φ3=Φmin+(Φmax-Φmin)/(k+1)*3=0.5+（4-0.5）/7*3=2，
Φ4=Φmin+(Φmax-Φmin)/(k+1)*4=0.5+（4-0.5）/7*4=2.5，
Φ5=Φmin+(Φmax-Φmin)/(k+1)*5=0.5+（4-0.5）/7*5=2.5，
Φ6=Φmin+(Φmax-Φmin)/(k+1)*k=0.5+（4-0.5）/7*6=3.5
the size of the square defect detection area is the same as the maximum and minimum sizes required by the surface defect to be detected, wherein the minimum side length of the square is 0.5mm, and the longest side length of the square is 4 mm.
The requirement of the part on a circular detection area is only two squares with the maximum side length and the minimum side length, for the detection convenience, the size range of the surface defect is accurately estimated, 6 squares are inserted between the side lengths, and the side lengths are respectively:
l 1=l min+(l max-l min)/(k+1)=1mm，
l 2=l min+(l max-l min)/(k+1)*2=1.5mm，
l 3=l min+(l max-l min)/(k+1)*3=2mm，
l 4=l min+(l max-l min)/(k+1)*4=2.5mm，
l 5=l min+(l max-l min)/(k+1)*5=3mm，
l 6=l min+(l max-l min)/(k+1)*6=3.5mm，
the rectangular size of the rectangular defect detection area is the same as the length and width sizes required by the surface defect to be detected, and is 6.35mm multiplied by 2 mm. And scales are marked in two directions of the length and the width of the rectangle by taking millimeters as a unit so as to accurately record the length and the width of the defect.
The invention solves the problems of complex measuring process, inaccurate measuring result and low measuring efficiency of the existing precise optical measuring equipment in the traditional detection tool for the surface defects. Whether the surface defects meet the technical requirements of products or not can be judged quickly, and the detection efficiency is improved. Circular and square defect detection areas with different diameters and side lengths are arranged on the sample plate, so that the size range of the surface defects can be rapidly known, and support is provided for qualitative and quantitative description of the defects. The rectangular defect detection area on the sample plate can not only quickly judge whether the defect size is qualified, but also measure the specific size of the defect through scales.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiments according to the technical spirit of the present invention are included in the scope of the present invention.
Claims (8)
1. A template for rapidly detecting the surface defects of parts is characterized by comprising a circular, square and rectangular defect detection area, and the dimensional tolerance of the template is 1/10-1/4 of a tolerance band required by the defect detection of the parts.
2. The template for rapidly detecting the surface defects of the parts as claimed in claim 1, wherein a plurality of circular, square and rectangular defect detection areas with gradually changed sizes are sequentially and respectively arranged on the template, and the circular, square and rectangular defect detection areas respectively comprise a circle, a square and a rectangle with the largest and the smallest size required by the surface defects to be detected.
3. The template for rapidly detecting the surface defects of the parts according to claim 1 or 2, wherein the diameters of the circular holes of the circular defect detection area comprise a minimum aperture Φ min and a maximum aperture Φ max which are the same as the maximum and minimum apertures required by the surface defects to be detected;
for easy detection, and at the same time, accurately estimating the surface defect size range at phiminAnd phimaxK round holes are arranged between the two and the diameters of the round holes are phi1，Φ2，Φ3，…，Φk(ii) a And the following conditions are satisfied:
Φ1=Φmin+(Φmax-Φmin)/(k+1)，
Φ2=Φmin+(Φmax-Φmin)/(k+1)*2，
…
Φk=Φmin+(Φmax-Φmin)/(k+1)*k。
4. a template for rapid inspection of surface defects of parts according to claim 1 or 2, wherein the square dimensions of the square defect inspection area comprise the same minimum side length as the maximum and minimum dimensions required for the surface defects to be inspectedl minLongest side lengthl max；
For convenient detection and accurate estimation of the range of surface defect sizesl minAndl maxk squares are arranged between the two detection edge lengths of the squares arel 1，l 2，l 3，…，l k(ii) a And the following conditions are satisfied:
l 1=l min+(l max-l min)/(k+1)，
l 2=l min+(l max-l min)/(k+1)*2，
…
l k=l min+(l max-l min)/(k+1)*k。
5. the template for rapidly detecting the surface defects of the parts according to claim 1 or 2, wherein the rectangular size of the rectangular defect detection area is the same as the required length and width of the surface defects to be detected; and scales are marked in two directions of the length and the width of the rectangle by taking millimeters as a unit so as to accurately record the length and the width of the defect.
6. The template for rapidly detecting the surface defects of the parts as claimed in claim 1, wherein the template is made of a transparent acrylic plate and has a thickness of 1-3 mm.
7. A template for rapid detection of surface defects of parts according to any one of claims 1, 2 and 6, wherein the template is chamfered at the periphery and the size of the chamfer is 3mm-5 mm.
8. A template for rapid detection of surface defects of parts according to any one of claims 1, 2 and 6, wherein a hanging hole with a 3mm hole diameter is formed in the template at a position 5mm away from the edge of the template for hanging the thin line when the template is stored.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010414086.8A CN111536850A (en) | 2020-05-15 | 2020-05-15 | Sample plate for rapidly detecting surface defects of parts |
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| CN202010414086.8A CN111536850A (en) | 2020-05-15 | 2020-05-15 | Sample plate for rapidly detecting surface defects of parts |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114264772A (en) * | 2021-12-15 | 2022-04-01 | 成都飞机工业（集团）有限责任公司 | Part surface scratch contrast detection device and manufacturing method |
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| CN102261881A (en) * | 2011-07-22 | 2011-11-30 | 天津市思维奇工程检测技术有限公司 | Multifunctional ray detection film viewing ruler |
| CN104457478A (en) * | 2014-11-04 | 2015-03-25 | 华晨汽车集团控股有限公司 | Testing tool special for coating body defects |
| CN106066143A (en) * | 2016-06-28 | 2016-11-02 | 河南平芝高压开关有限公司 | Cambered surface defectoscopy card |
| CN109406630A (en) * | 2018-10-15 | 2019-03-01 | 成都飞机工业（集团）有限责任公司 | A kind of reference block and preparation method thereof for coating composite material structure ultrasound detection |
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2020
- 2020-05-15 CN CN202010414086.8A patent/CN111536850A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201917282U (en) * | 2010-12-01 | 2011-08-03 | 东莞宏威数码机械有限公司 | Measuring scale for faceplate defect |
| CN102261881A (en) * | 2011-07-22 | 2011-11-30 | 天津市思维奇工程检测技术有限公司 | Multifunctional ray detection film viewing ruler |
| CN104457478A (en) * | 2014-11-04 | 2015-03-25 | 华晨汽车集团控股有限公司 | Testing tool special for coating body defects |
| CN106066143A (en) * | 2016-06-28 | 2016-11-02 | 河南平芝高压开关有限公司 | Cambered surface defectoscopy card |
| CN109406630A (en) * | 2018-10-15 | 2019-03-01 | 成都飞机工业（集团）有限责任公司 | A kind of reference block and preparation method thereof for coating composite material structure ultrasound detection |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114264772A (en) * | 2021-12-15 | 2022-04-01 | 成都飞机工业（集团）有限责任公司 | Part surface scratch contrast detection device and manufacturing method |
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